Analog electronic clock

Abstract

It is an object to control the rotation of a motor for driving clock hands more reliably and to prevent abnormal wear and breakage of components due to an overload. When a rotation detecting circuit detects that a motor has not been rotated by a normal driving pulse, a control circuit controls the rotation of the motor with a corrective driving pulse having a pulse width greater than that of the normal driving pulse. When the rotation detecting circuit detects that the motor has not been rotated even by the corrective driving pulse, it stops controlling the rotation of the motor and notifies the fact that the movement of the hands of the clock has stopped with a notifying device.

What is claimed is:  
     
         1 . An analog electronic clock comprising: 
 motor control means for suppliing a driving pulse to control the rotation of a motor for driving clock hands,    wherein the clock hands display time with driving for rotation by the motor,    the motor control means has normal driving pulse generation means for generating a normal driving pulse having a predetermined pulse width, corrective driving pulse generation means for generating a corrective driving pulse having energy higher than that of the normal driving pulse and rotation detecting means for detecting the rotation of the motor and in that the rotation of the motor is controlled by the corrective driving pulse when the rotation detecting means detects that the motor has not been rotated by the normal driving pulse and the rotation control of the motor is stopped when the rotation detecting means detects that the motor has not been rotated by the corrective driving pulse.    
     
     
         2 . An analog electronic clock according to  claim 1 , wherein the motor control means has rotation detection driving pulse generation means for generating a driving pulse for detecting rotation and in that the motor is driven by the driving pulse for detecting rotation after the rotation of the motor is controlled by the corrective driving pulse to detect whether the motor has rotated or not with the rotation detecting means.  
     
     
         3 . An analog electronic clock according to  claim 1 , wherein the corrective driving pulse is a driving pulse having a width greater than that of the normal driving pulse.  
     
     
         4 . An analog electronic clock according to  claim 1  further comprising: 
 notifying means for notifying the fact that the movement of the hands has stopped when the motor control means has stopped controlling the rotation of the motor.